Portable telephone



FIG. 1 is a top front perspective view of a portable telephone showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front elevational view of using state thereof. 

The ornamental design for a portable telephone, as shown and described. 